Unreal Engine Issues
Unreal Engine Issues
NVIDIA 5080 GPU Crash when launching City Sample with DX12
UE - Graphics Features - Lumen - Apr 16, 2025UPDATE This issue no longer reproduces on driver versions 580.88 and higher. City Sample game crashes immediately upon opening with a NVIDIA 5080 with the latest drivers as well as some previous dr ...
[Interchange] Import Material flag ignored for MaterialInstances
UE - Editor - Content Pipeline - Import and Export - Apr 15, 2025When Import Materials flag is disabled we still import MaterialInstances currently. If the flag is disabled we should leave out Materials and MaterailInstances on import. ...
Navigation mesh is generated ignoring collision for ISM added by construction script
UE - AI - Navigation - Apr 15, 2025When opening a map with ISM in place, NavOctree is not updated because the ISM bounds are assumed invalid and the geometry is not taken into account in the navmesh build. The following log output i ...
Calling UBlueprintMapLibrary::GenericMap_Find with a non-existent key causes a memory leak
UE - Framework - Blueprint - Apr 15, 2025When Calling UBlueprintMapLibrary::GenericMap_Find with a non-existent key, the function construct the default structure in-place on the given pointer without destroying the object. This behavior ca ...
UPoseAsset::SetBasePoseName() always sets INDEX_NONE
UE - Anim - Runtime - Apr 11, 2025UPoseAsset::SetBasePoseName() does not correctly set the BasePoseIndex when a valid pose name is provided. Regardless of input, the pose defaults back to ReferencePose. Upon inspection of the implem ...
Nanite TwoSidedSign is backwards
UE - Graphics Features - Nanite - Apr 10, 2025The value of MaterialExpressionTwoSidedSign is flipped when calculating the Opacity Mask for Nanite meshes. This seems to be a regression in 5.5. ...
XR - Volumetric Clouds - VM Clouds appear overtop of meshes in the right-eye
UE - Graphics Features - Apr 10, 2025When the user changes the Volumetric Render Target Mode, the Volumetric clouds in a scene will render in front of Static Meshes in the Right-Eye. ...
init_unreal.py loads with errors from ML deformer module which has dependencies that are not loaded in -game runs of the editor
UE - Anim - Synthesis - ML Deformer - Apr 10, 2025SKP import - Mirrored groups will display with the default material in Keep Hierarchy imports
TM - Interoperability - Apr 10, 2025Reported in SF [Link Removed] SketchUp models containing grouped elements that are mirrored will incorrectly display these elements with the default material when imported using the Keep Hierarchy ...